Combined rotary earth-borihg abx



H. R. NOFTZ AND F. J. SCHWIIVHVIER.

COMBINED ROTARY EARTH BORING AND DRAW MACHINE. APPLICATION FILED JAN 13. 1919.

1,812,565. Patented Aug. 12, 1919.

4 SHEETSSHEET I INVENTOR H. R. NOFTZ AND F. J. SCHWIMMER.

COMBINED ROTARY EARTH BORING AND DRAW MACHINE.

1 APPLICATION FILED JAN-13.1919. 1 ,312,565. PutentedAug. 12, 1919.

' 4 SHEETS-SHEET Z.

H. R. NOFTZ AND F. J. SCHWIMMER. COMBINED ROTARY EARTH Bums AND DRAW MACHINE.

APPLICATION FILED JAN. I3. 1919.

Patented Aug; 12, 1919,

4 SHEETS-SHEET 3.

Fig-

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H. R. NOFTZ AND F. J. SCHWIMMER. COMBINED ROTARY EARTH BORING AND DRAW MACHINE.

APPLICATION FILED .IAN.13.19|9.

Patented Aug. 12, 1919.

4 SHEETS-SHEET 4.

' drill tool, and at the same time is permitararr'r ruin.

HARRY R. NOFTZ AND FREDBIGK J. SCHWIMMER, F TOLEDO, OHIO.

Specification of Letters Patent.

COMBINED ROTARY EARTH-BORING AN'D DRAW MACHINE.

Patented Aug. 1L2, 9199.

Application filed January 13, 1919. Serial No. 270,908.

thereon, which form a part of this specification. v

This inventio'nrelates particularly to boring machines of the well drilling type in which a'rotary pipe or drill spmdle is driven to impart a rotary movement to the attached it ted tolower in the well or hole. drilled as the drilling progresses. Y

the rota V It has been customaryfin the" use of machines of this character to employ'what is termed a draw works? to raise or withdraw pipe, which is made up of aplurality sections or lengths coupled together, from the well, and this draw works, so-far as, we-are aware, has comprised a unit which is separate: from and independent of the boring machine.

The primary ob ect ofour invention is tov combine a boring machine of the rotary type and a draw works ina unitary structure, which. is simple inits constmction, {efiicient}.

' in its 0 oration and compact in its arrangement 0 parts, thereby enhancing the practil-l'j' cability and commercial value of machines of this character and efiecting an economy in the constructionthereo'f. a

i trol' for the various control clutches of the Further objects of our invention the provision of an improved form of driving chuck for the rotary pipe or drill; the-"provision of a simple and eiiici'ent .unitaryconmachine; and the provision of a sim le from the. following detailed description thereof;

While the invention in, its broader aspect is capable of embodiment in numerous forms,

a preferred embodiment thereof is illu drawing, "and to the characters of reference marked trated in the accompanying drawings, in which,

Figure 1 is an elevation of the same in operative association with a Well derrick and with parts of the latter broken away. Fig. 2 is a plan view of the machine embodying the invention with parts removed andbroken away. Fig'. 3 is a central vertical section thereof on the line 3, 3 in Fig. 2. Fig. 4c is a side elevation thereof. Figs. 5 and 6 are a fragmentary plan and a fragmentary side elevation of the machine with parts removed. Figs. 7 and 8 are enlargedcentral vertical sections of the filler ring and driving chuck taken on the lines 7, 7 and 8, 8, respectively, in Fig. 9, and in operative engagement with a rotary pipe. Fig. 9 is a-plan view thereof. Fig. 10 is.' a perspective view of the'filler ring with the chuck removed. Fig. 11 is a central vertical section of the filler ring and" rotary pipe chuck taken on the line 11, 11 in Fig. 12, and with one member of the rotary pipe clamp in position'th'ereon. Fig. 12

is a top plan view of the filler ring, with the rotary pipe clamp mounted thereon and in engagement with a pipe, and Fig. 18 is a perspective view of one of the members of the rotary pipe clamp.

Referring to the drawings, 1 designates the. base frame or a machine embodying the invention, which is mounted, in the present instance, on runners or skids 2, 2, and is pro vided at its central portion'with a hollow vertical journal 3, the opening 4 of which extends entirely therethrough and is open at itstop and bottom to permit the lowering of arotary drill-carrying pipe or spindle 5 ftherethrough.

I A; sleeve or hub forming, what may be Tterrned, a rotaryv driver or driver-sleeve is mounted for free rotation onthe ournal 3 and has its upper portion extended above and shouldered over the upperend of the journal at i, in en'd thrust bearing cont-act therewith to support the sleeve in proper position on the ournal. The upper end of this sleeve may be provided with wrench sockets 8 toiacilitate a hand turning there .of. A fillerring 9 which, in the present..-

instance, is substantially square in form and is intended to carry the'rotary pipe-chuck 10, is set into a' correspondingly shaped socket (provided therefor in the upper end. of the driver-sleeve 6 and is caused to have rotation with said sleeve.

The driver-sleeve 611s provided at ts lower end with an annular set of teeth forming a beveled gear 11 concentric to the sleeve axis and in mesh with a beveled drive pinion 12,

loose on a horizontal drive shaft 13, which is suitably journaled in the base frame, as hereinafter described, and connected to any suitable source of power. A clutch sleeve 1% is splined on the shaft 13 and movable into and out of clutch engagement with the pinion 12. v

The draw means employed for hoisting or drawing the rotary pipe or spindle 5 from the well being bored, comprises a drum 15, which is sleeved or journaled on the driversleeve 6 for free rotary movements thereon and has a bearing support at its lower end at 16 on the shoulder formed on the driver sleeve by the gear 11. The drum is also provided at its upper end with an annular flange 17, which overhangs and interengages with the upper end of the driver-sleeve 6. The drum 15 has the outwardly extending upper and lower flanges 18 and 19 between which the draw-cable 20 winds on the drum, and the lower flange 19 .is provided on its under side with two radially spaced beveled gears 21 and 22, which are without and con centric to the gear 11 on the driver-sleeve, with the teeth of the former more remote from the shaft 13 than those of the latter, so that one acts as a high and the other as a low speed gear for the. drum.

Drive pinions 23 and 24 of different sizes, which are loose on the shaft 13, mesh, respectively, with the gears 21 and 22. The clutch 14 ,is disposed intermediate the pinions 12 and 23 and may be moved to place either pinion in driving connection with the shaft 13. The pinion 24 has its hub elonungated and extended outwardly through a bearing box 25 of the split type, and its outer end is adapted to be engaged by a clutch sleeve 26 splined on the shaft 13; It

is thus evident that either pinion 23 or 2% may be connected to the drive shaft and cause a relative fast or slow driving of the draw drum 15, and that the clutch sleeve 14: may be moved to disengage the pinion 23 and engage the pinion 12 to impart a driv- 50 ing action to the driver sleeve 6 and a conse quent rotary drillingmovement to the rotary pipe or drill spindle 5. The drum 15 is provided in the top of its upper flange 18 with wrench sockets 27 to facilitate a hand turning' of the drum.

Shippenlevers 28 and 29 are provided, re spectively, for the clutch sleeves 14 and 26, extending horizontally therefrom and being fulcrumed 'to respective frame brackets 30 and 31., The shipper-lever 28 has a bar 32 projecting outwardly from its outer end substantially in parallel relation to the shaft 13 and the lever 29 has a similar bar 32 projecting inwardly from its outer end in the plane at of pro ect1on of the bar 32, and, in the pres in clutch engagement with the shaft.

ent instance, below the same in vertically spaced relation thereto, as best shown in Fig. 6. A control-lever 3-l is fnlcrumed in vertical position to a bracket 35 rising from the base frame 1 at the outer side of the bars and and this lever carries a dog 36 at its lower end for vertical rocking movements intermediate the bars 32 and This dog is provided at one end with upper and lower catch lugs in position to be swung respectively into interlocking engagement with registering notches 37 and 38 in the adjacent edges of the respective bars 32 and 33. A hand latch 39 is pivoted to the upper end portion of the control lever 34 and has a rod 10 extending downward therefrom to one end of the dog 36, whereby rocking movements of the latch 39 will throw the dog into engagement with a coacting notch in one or the other of the bars 32, 33. In the present instance, the latch 39 is normally held in its outwardly swung position with respect to the'lever, and when in such position the upper lug on the dog 36 is in en gagement with the notch 37 in the bar 32, and an inward swinging movement of the latch from this position will cause a rocking of the dog 36 to release its engagement with the bar 32 and cause its lowering to engage the notch 38 in the bar 33. It is thus apparent that when the dog 36 is interengaged with the bar 32, a movement of the controllever 34 will efl'ect a shifting of the clutch sleeve 14 in one direction or the other to engage or release either of the associated pinions 12 and 23, and that a swinging movement of the control lever when the dog 36 is interengaged with the bar 33 will cause a shifting of the clutch sleeve 26 into and out ofclutch engagement with the pinion '24. It is apparent with this arrangement that only one of the bars 32, 33 can be shifted at one time by a movement of the control lever 33, thus insuring against throwing one of the clutches into engagement with a draw drum driving pinion when the drive pinion 12 is A trip-rod 41 is carried by the upper end' portion of the control-lever 34: for longitudinal movements lengthwise thereof, and has a shoulderd2, which, when the catch 39 is drawn a suflicient distance toward the lever to place the dog 36 in operating engagement with the bar 33, moves into position to engage a lug or finger 39 011 the lower end of the catch 39 and to retain the catch in said position. A spring 43 encircles a portion of the trip rod and acts against the shoulder 42 thereon to normally urge a movement of such shoulder into position to retain the f latch 39 in its retracted position relative to the lever. The outer end of the trip rod ll extends without the upper end of the control lever in position to be depressed by the thumbof the hand of the operator grasping the lever so asto move the shoulder 42 on the lug out of holding engagement with the catch 39. A split brake-band lat encircles the peripheral portion of the lower flange 19 of the draw-drum in osition to have binding engagement therewlth, and in the present instance, comprises two sections which are pivoted at adjacent ends to a common pivot 45, rising from the base frame 1 at one side of the drum, and the opposite ends of the said sections are connected by a draw-rod 46, which extends loosely through lugs at? on the free ends of said sections and carries a coiled compression spring 48 between said lugsin outward thrust contact with each to normally exert an outward drum releasing movement to the sections. A brake-lever 49 is fulcrumed to one of the lugs 4:7 and has toggle-link connection 50 with the rod 4.6 at the outer side of such lug, whereby a rockin of the brake-lever in one direction will efiect a relative inward movement of the free or connected ends of the brake-band and a consequent tightening of the band against the drum periphery.

For conveniencein assembling, the driveshaft-13 and parts carried thereby are suspended beneath the base frame 1, the hearing box 25 being suspended from an arched end portion or cross-beam .51 of the frame 1 by bolts 52, which bolts also serve to secure the sections of the bearing box together. The inner end of the shaft 13 is supported by a bearing box 53, which engages over the ex tended hub portion of the pinion 12 and is suspended from theunder side of the base frame by bolts 54 (Fig. 5). It is thus evident that the shaft 13, pinions 12, 23 and 24:

and clutch sleeves 14 and 26 carried thereby and the bearing boxes 25 and 53 may be removed as a unit from the machine by sim-' the sleeve and the two being of such complemental cross-sectional shape that one is driven by the other, and in thepresent instance, the socket'55 and filler ring are sub- 1 stantially. square in form. The bottom of the socket 55 is open. tothe opening 4 through the journal 3. The filler ring-9 is provided centrally in its top with a recess or socket 56 for receiving the rotary pipe-chuck 10, and the central portion of. the bottom of the recess 56 is provided with an opening 57 (Figs. 3 and 11) to permit-the free passage of the rotary pipe or drill spindle 5 therethrough. While the chuck 10 may be of any of the forms commonly used for the purpose, the embodiment thereof pass, downward therebetween. action-the longer rollers are in driving en- &

illustrated comprises a member 58 adaptedto fit into the filler ring recess 56 and to turn with said ring and having a central vertical opening therethrough, the wall of which is provided with a plurality of cam surfaces 59 successively arranged therearound, as illustrated in Fig. 9. A chuck roller is disposed between ea ch cam surface 59 and the.

at opposite sides of therotary pipe and with the rollers of one pair shorter vertically than those of the other pair. The long-rollers are designated 60 and the short rollers are designated 61. The purpose of varying the lengths of the chuck rollers of the two pairs is to enable the rotary pipe to be gripped and held by one pair when the other air is released therefrom to permit the en arged coupling 5 of the two pipe sections to pass down between the same. In other words, when the lower endof a coupling 5 has lowered substantially. into coaction with the upper ends of the rollers of the longer set, such rollers may be moved outward a sufficient distance to permit the coupling to pass downward therebetween while the rollers of the shorter set are still in driving engagement with the pipe. The same action takes place when the coupling has lowered substantially into position for its lower end to engage the tops of the shorter rollers, as'such rollers may then be withdrawn to permit the coupling end to During this gagement with the coupling. The rollers are retained 1n assembled position within the member 58 by pintles 62, which project through enlarged axial openings in the rollers and have their lower ends loosely projecting into respective cam grooves 63 in the bottomof the filler-ring socket 56, while the upper ends of said pintlesproject upward through similar cam slots 64: in the plate 65 secured to the top of the member 58. The member 58 has recesses 66 therein at the outer end of each cam surface into which the're'spective clutch rollers may move rec \ The customary pipe clamping members 67, 67 are mounted on the top of the filler ring 9 with their ends provided with inclined outer side surfaces 68, which fit between correspondingly inclined surfaces' 69 on lugs 70,wh-1ch r1se from the corner por- *tionsot the filler-ring, as well understood in the art, It is thus evident that tapered surfaces 69 on the filler-ring will cotiperate with the clamping members 67 to cause said members to grip the pipe 5 in opposing relation when said members are lowered between said tapered surfaces. The clamping members 67 are provided with hardenedpipe gripping inserts 71.

In Fig. 1, 79 designates a derrick frame which is mounted over the well being bored, and the draw cable 20 is illustrated as passing from the drum 15 under asheave 73, carried by the derrick frame at-one side thereof, and thence up to the top of the derrick over a sheave 74: and down therefrom to the upper end of the rotary iipe 5, to which it is coupled by a suitable rotary swivel 75. The power for driving the shaft 13 may be derived from a motor 76 located at one side of the derrick.

In the use of our invention the rotary pipe or drill spindle 5 is suspended by the cable 20 within the well through the pipe-chuck 10 and the opening 4 of the journal 3, and is lowered either by a loosening of the brakeband 4.4 on the drum, which permits a paying out of the cable 20, or by gravity action during the drilling operation. A rotary drilling movement is imparted tothe rotary pipe or drilling spindle 5 from the shaft 13 through the drive pinion 12, when in clutch engagement with the shaft, the drive-sleeve 6, filler-ring 9 and rotary chuck 10, the chuck 10, both in its present embodiment and in the forms heretofore commonly used in rotary boring machines, permitting the rotary pipe or spindle 5 to feed downward therethrough by its own weight while having a rotary drilling movement imparted thereto by the chuck. The chuck 10 illustrated may be released from driving engagement with the pipe at any-time by a slight back turning movement of the driver-sleeve 6 and parts carried thereby, or the chuck rollers may be moved back to released positions by hand after a slight back turning of the carrying parts to release the binding engagement of the rollers 9 with the pipe. When driving the rotary pipe 5, the drum driving pinions 23 and 24 are idle on the shaft, so that no driving action can then be imparted to the draw-drum. When it is desired to withdraw the rotary pipe from the well, one.

or the other of the pinions 23, 24, depending on the speed at which itis desired to drive the drum 15, is engaged to the shaft by a movement of its clutch and the drum -.is then rotated to wind the cable 20 thereon and effeet a consequent hoisting of the pipe. The control of the pinion clutches 14 and 2-6 is effected through a single control lever 34,

which may be engaged to the clutch bar 32 through the medium of the dog 36, by leaving the latch 39 in its normal position, or may be engaged to the clutch bar 33 through the medium of said dog by drawing the latch 39 toward the lever, the dog then being held in such position by the trip rod shoulder 42 until such trip rod is moved by hand to released position. I

During a driving of the drum 15 to wind the draw cable thereon, the brake lever 49 is operated to release the holding engagement of the brake band 44 with the drum, and when the driving "of the drum is stopped, the brake-band is operated to engage and hold the drum against back turning or to permit a retarded back turning thereof, as may be desired.

It is evident that we have provided a simple and efiicient combined rotary boring machine and draw works, the parts of which are arranged in compact form and driven from a common shaft.

The term rotary pipe where employed in the specification and claims will be un derstood to apply to the rotary tool carrying element which is usually hollow, in the form of a pipe, to permit the flow of water and drillings outward therethrough, but may comprisea spindle or other form of tool carrying element, and is therefore not necessarily restricted to a pipe or hollow drill stem or spindle, strictly speaking.-

We wish it understood that our invention capable of numerous modifications without departing from the spirit of the claims.

Having thus described our invention, what we'elaim as new, and desire to secure by Letters Patent is- TL'In a rotary boring'machine, a rotary driver sleeve, a rotary-pipe drive chuck carried thereby, a draw-drum mounted around said sleeve for rotation relative thereto, and

bearing means for said sleeve '2. In a rotary boring machine, a rotary- Q pipe driving means, a hollow vertical hearing for said means, and a draw-drum journaled on said driving means for rotation relative thereto.

3. In a rotary boring machine, a rotarypipe driving means, a hollow bearing for said means, a draw-drum journaled in en circling relation to said means, a drive shaft, and means operable to connect said shaft with either of said driving means or drum -to drive the same, 7

4.111 a rotary boring machine, a rotarypipe driving means, a hollow bearing therefor, a draw-drum journaled on said means, means for'impartin rotation to either said driving means or drum, and brake means for said drum.

5. In a machine of the class described, r0- taryv drive means and a drum mounted for relative rotation and having registering work receiving openings therethrough, and means for selectively driving said drive means and d 6. In a rotary boring machine, a hollow vertical journal, a rotary-pipe driver and a draw-drum having parts telescoped for relative rotary movements and one mounted on and carried by said journal.

7. In a rotary boring machine, a hollow vertical journal through which a rotary pipe may be projected, a rotary-pipe driver mounted on said journal, and a draw-drum journaled on a part of said driver.

8. In a rotary boring machine, a hollow vertical journal, a rotary-pipe driver and a draw-drum carried by said journal forrelative rotary movements, and means for imparting rotation to either said driver or drum.

9. In a rotary boring machine, a hollow vertical journal, a rotary pipe driver and a draw-drum having parts telescoped for relative rotary movements and one mounted on and carried by said journal, and means for imparting rotation to either said driver or journal, a :driver sleeve rotatable on said journal, a rotary-pipe chuck carried by said sleeve and driven thereby and in register with the journal opening, a draw-drum mounted for rotary movements relative to said sleeve around the same, and means for driving said drum. U

12. In a rotary boring machine, a frame having a part forming a. hollow vertical bearing, a driver rotatably carried by said bearing, a rotary-pipe chuck carried by sald driver and driven thereby in register with thetbearing opening, a draw-drum mounted for rotary movements relative tosaid driveraround its axis, and means for driving either the driver or drum, n

13. In a1 rotary boring for 7 i'otary-pi ie driver a,'1a dIfEtW-(1T;11Ih sleeved}- one on the other ijor relative rotation, abearring for said drum, and means for driv ng said driver at one speed and said drum at a difi'erent speed.

rotary-pigs machine, a frame having a part forming a hollow, vertical journal, a driver sleeve rotatable onsaid journaL-a rotary pipe chuck carried by said "sleeve and? driven thereby and 1m registergwith the journal opening, a draw drum mountedffor rotary movementsrelative to :Ysaid'sbeve. around the same, and means driyingielithertsaid sleeve or drum. 5141. In a machine of the class described a,

15. In a machine of the class described. a dr1ver and a draw-drum mounted for relative rotation about a common point, a bearmg carrying said driver and drum and means for driving said driver at one speed and said drum at a different speed.

16. In a machine of the class described, a frame having a part forming a hollow vertical journal, a rotary pipe driver and a draw-drum sleeved one on the other for relative rotation and one rotatably sleeved on said journal, and means for driving either said driver or drum.

In a machine of the class described. a driver and a drum adapted to have relative rotary movements about the axis of an object being driven, a bearing; carrying said driver and drum, means for separately driving said driver and drum, and a brake band encircling a portion of said drum and operable to resist rotation thereof.

18. In a machine of the class described, a hollow vertical journal, a driver sleeve rotatably mounted thereon, a rotarypipc chuck and a draw-drum carried by said sleeve, the latter only for rotation relative thereto, and means for separately driving said sleeve and drum.

19. In a machine of the class described, a hollow vertical journal, a driver rotatably sleeved on said journal, a rotary-pipe chuck and a pipe clamping means carried by said driver for rotation therewith, a draw-drum mounted for rotation relative to said driver around the pipe being driven, and means for se arately driving said driver and drum.

' 20. n a machine of the class described, a hollow vertical journal, a rotary-pipe driver rotatably mounted on said journal and ha ing an annular gear at its base portion, a' draw-drum journaled on said driver and having an annular gear on its lower portion, and means having drive pinions in mesh with said gears and selectively adaptable to be rendered active or idle.

21. In aimachine of the class described, a. driver having'an annular gear at one en a draw-drum having an annular gear at one end, bearing means carrying said-driver and drum, means having drive .pinions. in mesh with said gears and selectively: adaptable to be rendered active or 'idle, anda brake operable to resist a rotation of said drum.

" In-a'machine of the class described, a

hollow-vertical journal, a rotary-pipe driver 1 frttatably mounted onsaid journal having an annula-r gearat its. base portion, a ,draw-drum 'journaled'. on said driver and having a'pluralit'y 10fannular gears at its lower portion, and drive means operable to y fselectively drive said gears.

,, 23. In a. machine of the'clas's rotary-pipedriver, a bearing for sa d driver, a draw-drum mounted for substantially condescribed, a j 1 centric rotation on said driver and each havnection with either of said gears.

24. In a machine of the class described,

driver sleeve and a draw-drum journaled to adapt them to have relative rotation around a common point, each having a gear at its lower end concentric to its axis of rotation, a hollow bearing for said sleeve and drum, a pipe chuck carried by said sleeve, a drive shaft disposed below said driver and drum, means operable to place the shaft in driving connection with either of the gears, and brake means for the drum.

25. In a machine of the class described, a frame, a driver sleeve and a draw-drum mounted on said frame for relative rotary movements around a common line passing through the frame, said driver sleeve and drum each having a gear at its lower end, a chuck carried by said sleeve and means carried by and removable as a unit from said frame below said driver and drum, and including a drive shaft, and means carried thereby and operable to place the shaft in driving connection with elther of said gears.

26. In a machine of the class described, a frame having a hollow upright journal through which a rotary pipe may project, a

. driver rotatably sleeved on said journal and having a rotary pipe chuck at its upper end and a gear at its lower end, a draw-drum ro' tatably carried by said driver and having a gear at its lower end without the driver gear, brake means for said drum and means removably suspended from said frame beneath said driver and'drum and including a drive shaft and means carried thereby and operable to place the shaft in drive connection with either of said gears.

27. In a machine of the class described, a

frame having a hollow upright journal through which a rotary-pipe may project, a driver rotatably sleeved on said journal and having a rotary-pipe chuck at its upper end and a gear at its lower end, a draw-drum rotatably carried by said driver and having a plurality of gears at its lower end without the driver gear, brake means for said drum, and means removably suspended from said .rection.

frame below said driver and drum and in cluding a drive shaft and means carried thereby and operable to selectively place the shaft in driving connection with any of said gears.

28. In a machine of the class described, rotary-pipe driving means and a draw-drum mounted for relative rotation about a common axis, and each'having a gear at one end, a drive shaft disposed at the geared ends of said driving means and drum, and manually controlled, means operable to selectively place the shaft in driving connection with either of said gears but not both at one time.

29. In a machine of the class described, a bearing, a rotary driver and a drum carried by said bearing for relative rotary movements around a common point, the driver having one end geared and the drum hav ing a plurality of gears at one end, a drive shaft, and manually controlled means operable to selectively place said shaft in driving connectionwith any one of said gears.

30. In-a machine of the class described, a rotary driver, a chuck carried by said driver and comprising a body member having an opening therethrough axially of said driver,

the wall of said opening having successive circumferentially extending cam surfaces, and chuck rollers mounted in said member and cotiperable with said cam surfaces to clutch an article projected through said opening when the driver is rotated in one di 31. In a machine of the class described, a rotary driver, a chuck carried by said driver and comprising a body member having an opening therethrough axially of said driver,

"the wall of. said opening having successive cam surfaces circumferential-1y extendinp lers mounted in and two pairs of clutch ro said member and cooperable with the cam In. testimony whereof, We have hereunto 

